Surgical Instrumentation : Use , C Are and Handling

Total Page:16

File Type:pdf, Size:1020Kb

Surgical Instrumentation : Use , C Are and Handling SURGICAL INSTRUMENTATION : USE , C ARE AND HANDLING 1958 1958 SURGICAL INSTRUMENTATION : U SE , C ARE AND HANDLING STUDY GUIDE Disclaimer AORN and its logo are registered trademarks of AORN, Inc. AORN does not endorse any commercial company’s products or services. Although all commercial products in this course are expected to conform to professional medical/nursing standards, inclusion in this course does not constitute a guarantee or endorsement by AORN of the quality or value of such products or of the claims made by the manufacturers. No responsibility is assumed by AORN, Inc, for any injury and/or damage to persons or property as a matter of product liability, negligence or otherwise, or from any use or operation of any standards, recommended practices, methods, products, instructions, or ideas contained in the material herein. Because of rapid advances in the health care sciences in particular, independent verification of diagnoses, medication dosages, and individualized care and treatment should be made. The material contained herein is not intended to be a substitute for the exercise of professional medical or nursing judgment. The content in this publication is provided on an “as is” basis. TO THE FULLEST EXTENT PERMITTED BY LAW, AORN, INC, DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, STATUTORY OR OTHERWISE, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, NON-INFRINGEMENT OF THIRD PARTIES’ RIGHTS, AND FITNESS FOR A PARTICULAR PURPOSE. This publication may be photocopied for noncommercial purposes of scientific use or educational advancement. The following credit line must appear on the front page of the photocopied document: Reprinted with permission from The Association of periOperative Registered Nurses, Inc. Copyright 2012 “Surgical Instrumentation: Use, Care, and Handling.” All rights reserved by AORN, Inc. 2170 South Parker Road, Suite 400, Denver, CO 80231-5711 (800) 755-2676 www.aorn.org Video produced by Cine-Med, Inc. 127 Main Street North, Woodbury, CT 06798 Tel (203) 263-0006 Fax (203) 263-4839 www.cine-med.com 2 SURGICAL INSTRUMENTATION : U SE , C ARE AND HANDLING Surgical Instrumentation: Use, Care and Handling TABLE OF CONTENTS PURPOSE/GOAL /OBJECTIVES .....................................................................................................4 INTRODUCTION .............................................................................................................................5 MANUFACTURING PROCESSES .................................................................................................5 Stainless Steel ..........................................................................................................................5 Titanium ...................................................................................................................................5 Vitallium ..................................................................................................................................5 Other Metals ............................................................................................................................5 Instrument names .....................................................................................................................6 TYPES OF SURGICAL INSTRUMENTS .......................................................................................6 Cutting and Dissecting Instruments .........................................................................................6 Powered Cutting Instruments ..................................................................................................8 Clamping and occluding instruments ......................................................................................8 Grasping and Holding Instruments ........................................................................................10 Exposing and Retracting Instruments ....................................................................................10 Suturing and stapling instruments ..........................................................................................11 Accessory Instruments ...........................................................................................................12 ENDOSCOPIC (MINIMALLY INVASIVE) INSTRUMENTS .....................................................13 INSTRUMENT CARE AND HANDLING ON THE STERILE FIELD .......................................14 INSTRUMENT CARE AFTER PROCEDURE ..............................................................................15 Decontamination ....................................................................................................................15 Cleaning .................................................................................................................................15 Inspecting ...............................................................................................................................16 Endoscope Cleaning ..............................................................................................................16 Laparoscopic Instruments ......................................................................................................16 Powered Surgical Instruments ...............................................................................................18 SPECIAL PRECAUTIONS ............................................................................................................19 Ophthalmic Instruments ............................................................................................................ Prion Diseases ............................................................................................................................ PERSONAL PROTECTIVE EQUIPMENT (PPE) .........................................................................19 SUMMARY .....................................................................................................................................19 REFERENCES ...............................................................................................................................20 POST-TEST ....................................................................................................................................21 POST-TEST ANSWERS .................................................................................................................24 3 SURGICAL INSTRUMENTATION : U SE , C ARE AND HANDLING PURPOSE/GOAL The purpose of this study guide and accompanying video is to provide information to perioperative staff members on the use, care and handling of all surgical instruments including minimally invasive, powered and endoscopic instruments. OBJECTIVES After viewing the video and completing the study guide, the participant will be able to: 1) State the principles of instrument care. 2) Describe the four major categories of surgical instruments. 3) Name the basic components of powered instruments. 4) Discuss special considerations for endoscopic instruments. 5) Discuss intraoperative instrument handling including proper passing techniques. 6) Describe the proper cleaning required for each category of instrument. 4 SURGICAL INSTRUMENTATION : U SE , C ARE AND HANDLING INTRODUCTION instruments produced. It is important for perioperative staff Surgical instruments are members to know what each instrument is made of. The metal high quality tools that are alloys used in surgical instruments must be resistant to designed for accomplishing corrosion, which can result from exposure to blood, body a specific desired effect fluids, cleaning solutions, sterilization, and the atmosphere. during invasive procedures. Instruments are integral Stainless Steel components of all surgical Instruments made of stainless steel begin the manufacturing procedures. Perioperative staff members must understand the process with the conversion of raw steel into instrument use, handling, and care of surgical instruments. Proper blanks. There are more than 80 different types of stainless steel cleaning and handling minimizes damage, increases and these are graded based on quality and composition. The instrument life expectancy, and protects instruments, which most common grades used for surgical instruments are the 300 are a major financial investment for facilities. Careful and 400 series grades and of those, the 400 series is more planning, preparation, and use of instruments will contribute commonly used. Instruments such as retractors and speculums to an efficient and effective surgical procedure within a safe are generally manufactured from the 300 series, while cutting environment. and non-cutting instruments are made from the 400 series. Surgical instruments perform basic functions such as holding Titanium or retracting tissue; dissecting, cutting, or incising tissue; and Titanium has excellent metallurgical properties for use in assisting with suturing and or closure of the surgical incision. microsurgical instruments. The most notable and useful Most surgical instruments are made of stainless steel or other properties of titanium are that it is nonmagnetic and inert. It metals. The metal selected must be easily cleaned, disinfected, is harder, stronger, lighter in weight, and more resistant to and maintained. corrosion than stainless steel. 1 Surgical procedures are becoming more complicated and Vitallium intricate and as a result surgical instruments are becoming Vitallium, the trade name for a cobalt/chromium/molybdenum
Recommended publications
  • SURGICAL INSTRUMENTS Veterinarians Are the Doctors Specializing in the Health of Animals
    SURGICAL INSTRUMENTS Veterinarians are the doctors specializing in the health of animals. They do the necessary surgical operations and care for the well-being of the animal creatures. The very basic thing they need in a certain operation and care are the veterinary instruments. This will serve as the main allay of every veterinarian in providing care. (1) What are surgical instruments? Surgical instruments are essentially gadgets planned in an uncommon manner to perform particular capacities amid a surgical operation to improve viability and accomplishment of the surgery. (1) 4 Basic types of surgical instruments Surgical instruments are specially designed tools that assist health care professionals car- ry out specific actions during an operation. Most instruments crafted from the early 19th century on are made from durable stainless steel. Some are designed for general use, and others for spe- cific procedures. There are many surgical instruments available for almost any specialization in medicine. There are precision instruments used in microsurgery, ophthalmology and otology. Most surgical instruments can be classified into these 4 basic types: Cutting and Dissecting – these instruments usually have sharp edges or tips to cut through skin, tissue and suture material. Surgeons need to cut and dissect tissue to explore irregular growths and to remove dangerous or damaged tissue. These instruments have single or double razor- sharp edges or blades. Nurses need to be very careful to avoid injuries, and regularly inspect these instruments before using, for re-sharpening or replacement. 11 Iris Scissors 2016 – 1 – LV01-KA202 – 022652 This project is funded by the European Union Clamping and Occluding – are used in many surgical procedures for compressing blood vessels or hollow organs, to prevent their contents from leaking.
    [Show full text]
  • XI Manual IAPO Ingl CS6.Indd
    IAPO Interamerican Association of Pediatric Otorhinolaryngology XI IAPO Manual of Pediatric Otorhinolaryngology Editors TANIA SIH ALBERTO CHINSKI ROLAND EAVEY RICARDO GODINHO Coordinator TANIA SIH Techniques for Adenotonsillectomy (T&A) Estelle S. Yoo and Udayan K. Shah 1. Introduction Adenotonsillectomy (T&A) is one of the most commonly performed surgical procedures in children. An estimated 530,000 children undergo tonsillectomies each year in the United States.1 Various instruments are available currently to perform adenotonsillectomy. In Walner et al, monopolar electrocautery was used most often for total tonsillectomy. Monopolar electrocautery alone or in conjunction with the adenoid curette or the microdebrider were the top three instruments.2 In this chapter, we review the currently available technologies for performing T&A in children. We first review indications for T&A before discussing specific technologies and then discuss specific applications of these technologies for T&A. 2. Indications for T&A The indications for tonsillectomy have shifted over the past 40 years. In the early 1970s, close to 90% of tonsillectomy procedures in the United States were performed in response to infections. Current trends in T&A suggest obstructive sleep apnea (OSA) as the indication for tonsillectomy in younger children, ages 0-8 years, while infection is the most common indication in children ages 9-18 years.3 Today, most procedures are performed to treat sleep disordered breathing (SDB), which is defined as a continuum from primary snoring to OSA. This trend reflects not only improved control of the complications of group A streptococcal pharyngitis with antibiotics but also increased rates of childhood obesity, a concomitant and perhaps related factor in the diagnosis of SDB, and a greater awareness of the impact of SDB on children’s educational progress and cognitive development.
    [Show full text]
  • The Introductory Guide/Basic Course #1 Chapter I About Sklar for 123 Years, Sklar Has Set the Standard for Surgical Instrumentation
    Surgical Instruments: The Introductory Guide/Basic Course #1 Chapter I About Sklar For 123 years, Sklar has set the standard for surgical instrumentation. In 1892, German born instrument maker John Sklar, founded the company to fill a need for American made surgical instruments and the rest is history. Sklar rose to prominence during World Wars I and II and was awarded the principal contract as the surgical instrument provider for the United States military. This contract established Sklar as the industry leader and placed it on the forefront of the surgical marketplace, where it went on to receive Certificates of Merit and Achievement from the U.S. Navy and six Army Navy “E” Production Awards. During the 1930s, Sklar’s research department helped to develop a stainless steel alloy especially suited to the manufacture of surgical instruments. The company’s investment in research was justified long-term; most surgical instruments are still made of long-lasting, rust resistant, stainless steel. Today, Sklar is headquartered in West Chester, Pennsylvania where it remains the authority on the manufacture of high quality surgical instruments to medical professionals in 75 countries worldwide. Throughout its history, Sklar has collaborated with leading surgeons and medical facilities to develop thousands of unique surgical instrument patterns. In recent years, Sklar has expanded its product line to include more than 19,000 precision crafted, stainless steel instruments: the largest offering of surgical instruments in the world. Specialty practices include: OB/GYN, Orthopedic, ENT, Cardiovascular, Endoscopic, Dermatology, Podiatry, Veterinary, Dental, etc. The prevention and reduction of healthcare associated infection (HAI) is a top priority in medical facilities today.
    [Show full text]
  • Advanced Energy Systems for Laparoscopic Gynecology Procedures
    Available at www.obgmanagement.com S U pp L ement to This supplement is supported by a grant from Ethicon Endo-Surgery, Inc., and has been peer reviewed by the editors of OBG Management. November 2009 Advanced energy systems for laparoscopic gynecology procedures Multifunctional technology yields reliable outcomes, enhances patient safety, and increases procedure efficiency Chair Dr Brill: Probably no surgical instrument defines the gynecolo- gist more than the Kleppinger forceps, the first bipolar device Andrew I. Brill, MD Director of Minimally Invasive used for tubal ligation. It remains an important part of our ar- Gynecology mamentarium despite thermal spread, smoke, char, tissue stick- California Pacific Medical Center ing, and inconsistent hemostasis,1-5 shortcomings that have led San Francisco, California to the development of newer bipolar electrosurgical devices— the LigaSure™ Vessel Sealing System, PlasmaKinetic (PK) plat- Faculty form, and ENSEAL®. These energy-based surgical devices offer John D. Bertrand, MD Director added functionality—coagulation and cutting in a single instru- Minimally Invasive Surgery ment—as well as increased efficiency. These instruments offer Texas Health Dallas specific features that appeal to gynecologic surgeons who have Walnut Hill OB/GYN Associates Dallas, Texas different needs and preferences. Ultrasonic energy technology has also advanced significantly, with instruments such as the Steven D. McCarus, MD Harmonic ACE®, which both cuts and coagulates at the point Chief, Division of Gynecologic Surgery of impact for use in soft-tissue incisions and transections. Director, The Center for Despite our collective surgical experience, the comparative Pelvic Health Florida Hospital Cenebration strengths and weaknesses of these devices have yet to be clearly Orlando, Florida established in an unbiased and reproducible fashion.
    [Show full text]
  • The Basic Surgery Kit
    GLOBAL EXCLUSIVE > SURGERY > PEER REVIEWED The Basic Surgery Kit Jan Janovec, MVDr, MRCVS VRCC Veterinary Referrals Laurent Findji, DMV, MS, MRCVS, DECVS Fitzpatrick Referrals Considering the virtually limitless range of surgical instruments, it can be difficult to assemble a cost-effective basic surgery kit. Some instruments may misleadingly appear multipurpose, but their misuse may damage them, leading to unnecessary replacement costs or, worse, intraoperative accidents putting the patient’s safety at risk. Many instru- ments are available in different qualities and materials (eg, tungsten carbide instruments— more expensive but much more resistant to wear and corrosion than stainless steel) and Minimal Basic Surgery Kit varied sizes to match the purpose of their use as well as the size of the surgeon’s hand. n 1 instrument case Cutting Instruments n 1 scalpel handle Scalpel n 1 pair Mayo scissors The scalpel is an indispensible item in a surgical kit designed to make sharp incisions. Scalpel incision is the least traumatic way of dissection, but provides no hemostasis. n 1 pair Metzenbaum scissors Scalpel handles come in various sizes, each accommodating a range of disposable n 1 pair suture scissors blades (Figure 1). Entirely disposable scalpels are also available. n 1 pair Mayo-Hegar needle holder Scissors n 1 pair Brown-Adson tissue forceps Scissors are used for cutting, albeit with some crushing effect, and for blunt dissection. n 1 pair DeBakey tissue forceps Fine scissors, such as Metzenbaum scissors (Figure 2), should be reserved for cutting n 4 pairs mosquito hemostatic forceps and dissecting delicate tissues. Sturdier scissors, such as Mayo or suture scissors, are designed for use on denser tissues (eg, fascia) or inanimate objects (eg, sutures, drapes).
    [Show full text]
  • 17.1 Management of Intraoperative Complications in Open Procedures 315
    17 Intraoperative Complications Management of Intraoperative Complications 17.1 in Open Procedures G.H.Yoon,J.Stein,D.G.Skinner complicationsthattheauthorshaveencountereddur- 17.1.1 Introduction 313 ing open urologic procedures. It is emphasized that the 17.1.2 Vascular Complications 314 best surgical offense starts with good defense. 17.1.2.1 General Principles 314 17.1.2.2 Arterial Injuries 315 Prior to entering the operating room, the urologic 17.1.2.3 Venous Injuries 317 surgeon must prepare by mentally reviewing four gen- 17.1.3 Intestinal Complications 319 eral principles. Firstly, all necessary imaging studies 17.1.3.1 Bowel Injury 319 should be obtained preoperatively to completely delin- 17.1.4 Solid Organ Injury 323 eate the disease process, its extent, and its relation to 17.1.4.1 Spleen 323 adjacent organs and structures. This provides a work- 17.1.4.2 Pancreas 323 ing knowledge of the lay of the land, so to speak, such 17.1.4.3 Diaphragm 326 that few or no surprises are encountered. Radiographic 17.1.5 Conclusion 326 imaging techniques have clearly improved over the past References 326 decadesandprovidethesurgeonaroadmapfroman anatomical perspective. Proper imaging preoperatively will reduce the potential for surgical misadventures, 17.1.1 identify the anatomy and anomalous structures, as well Introduction as help identify the so-called pathology of interest. Pre- operative imaging studies may also direct the need for Attention to surgical details and a commitment to sur- consultations with other surgical specialties as deemed gical excellence are two fundamental principles that necessary. will help provide the best clinical and functional results Secondly, based on the region of the body involved, following open surgical procedures.
    [Show full text]
  • Basic Surgical Techniques
    BASIC SURGICAL TECHNIQUES Textbook Authors: György Wéber MD, PhD, med. habil. János Lantos MSc, PhD Balázs Borsiczky MD, PhD Andrea Ferencz MD, PhD Gábor Jancsó MD, PhD Sándor Ferencz MD Szabolcs Horváth MD Hossein Haddadzadeh Bahri MD Ildikó Takács MD Borbála Balatonyi MD University of Pécs, Medical School Department of Surgical Research and Techniques 20 Kodály Zoltán Steet, H-7624 Pécs, Telephone: +36 72 535 820 Website:http://soki.aok.pte.hu 2008 1 PREFACE The healing is impossible without entering into suffering people’s feelings and to humble yourself in your profession. All these are completed by the ability to manage the immediate and critical situations dynamically and to analyze the diseases interdisciplinarily (e.g. diagnosis, differential diagnosis, appropriate decision among the alternative possibilities of treatment, etc.). A successful surgical intervention requires even more than this. It needs the perfect, aimful and economical coordination of operational movements. The refined technique of the handling and uniting the tissues –in the case of manual skills– is attainable by many practices, and the good surgeon works on the perfection of this technique in his daily operating activities. The most important task in the medical education is to teach the problem-oriented thinking and the needed practical ability. The graduate medical student will notice in a short time that a medical practitioner principally needs the practical knowledge and manual skill in provision for the sick. “The surgical techniques” is a popular subJect. It is a subJect in which the medical students -for the first time- will see the inside of the living and pulsating organism.
    [Show full text]
  • Laparoscopic Appendectomy Instrumentation
    CIS SELF-STUDY LESSON PLAN Lesson No. CIS 275 (Instrument Continuing Education - ICE) Sponsored by: Laparoscopic Appendectomy Instrumentation JON WOOD, BAAS, CIS, CRCST – IAHCSMM CLINICAL EDUCATOR Instrument Continuing Education (ICE) lessons provide members with ongoing education in the complex and ever-changing area of surgical LEARNING OBJECTIVES instrument care and handling. These lessons are 1. Describe the different instrumentation needed to perform a laparoscopic designed for CIS technicians, but can be of value appendectomy to any CRCST technician who works with surgical 2. Identify key cleaning and inspection points for laparoscopic appendectomy instrumentation. instrumentation 3. Review medical terminology associated with appendectomy procedures Earn Continuing Education Credits: 4. Discuss the function of laparoscopic instruments during a laparoscopic Online: Visit www.iahcsmm.org for online appendectomy grading at a nominal fee. By mail: For written grading of individual lessons, send completed quiz and $15 to: Purdue University - Online Learning patient walks into the facility-specific needs, and surgeon Ernest C. Young Hall, Room 526 Emergency Department with preference. The appendectomy procedure 155 S. Grant Street dull pain around the belly requires a mixture of both general West Lafayette, IN 47907 button that radiates and instrumentation and laparoscopic Scoring: Each quiz graded online at Abecomes sharper as it moves to the lower instrumentation, which can be arranged www.iahcsmm.org or through Purdue University, right abdomen. The patient reports a in a single instrument tray format or be with a passing score is worth two points (2 contact hours) toward your CIS re-certification (6 points) loss of appetite and is experiencing some a combination of several trays, including or CRCST re-certification (12 points).
    [Show full text]
  • Handling of Instruments
    Limbs & Things TM learning online Handling of Instruments Overview If you are new to suturing, you will need to learn to recognize each of the instruments you are going to use, understand their function and practise the basic techniques of using them. 1 Scalpel A scalpel is a razor-edged blade on a handle. There are two types of surgical scalpel: reusable and disposable. Reusable scalpels consist of a blade that is replaced after every use, attached to a stainless steel handle that can be sterilised and re-used multiple times. In a hospital setting, this type is more likely to be used in order to reduce waste and to allow doctors to work with a variety of blades and handle sizes. Disposable surgical scalpels are usually single-piece with a plastic handle. This is the type provided in our Hands-on Kit for practice. Although you will use the same scalpel multiple times for practice, in a clinical setting you would dispose of the entire scalpel after a single use. 1.1 Principles A scalpel is essential for incising the skin and for sharp dissection. Held flat, it can also be useful for carefully undermining the skin edge to relieve tension. A razor edged blade engages over a flange on the scalpel handle. Several sizes of scalpel handle are available and size 3 is appropriate for most purposes. Each handle can be fitted with disposable blades of different shapes. The scalpel can be held in one of two ways: - For making large incisions e.g. laparotomy, and subcutaneous fat dissection, hold the scalpel like a table knife, with your index finger guiding the blade.
    [Show full text]
  • Surgical Instruments
    APGO Basic Clinical Skills Curriculum Surgical Instruments Association of Professors of Gynecology and Obstetrics (APGO) Undergraduate Medical Education Committee ©2017 Surgical Instruments Table of Contents Description of Surgical Instruments 3 Intended Learning Outcomes 3 Best Practices 4 Checklist 7 Performance Assessment 12 Practical Tips 12 Resources 12 2 DESCRIPTION Learners rotating on the Obstetrics and Gynecology clerkship require basic knowledge and dexterity related to commonly-used surgical instruments. These skills with surgical instruments are important for 3rd and 4th year learners in all surgical and procedural specialties. Knowledge and dexterity with instruments and basic surgical techniques can increase faculty willingness to allow more hands-on learner participation in procedure- related encounters and the operating room in general. Increased learner participation can increase learner interest in the surgical and procedural aspects of Obstetrics and Gynecology. It can also allow the learner to explore if a procedural specialty is attractive as a future career choice. The goal of this module is to increase student knowledge and dexterity with commonly-used surgical instruments which ought to result in improved faculty willingness to actively involve learners in the surgical care of patients. This module presents a clinical simulation for teaching learners to correctly identify, hold and manipulate the commonly-used instruments for a C- Section and an abdominal hysterectomy. INTENDED LEARNING OUTCOMES After completing this module learners will be able to do the following: 1. Visually identify the common surgical instruments used in a Cesarean section and an abdominal hysterectomy a. Scalpel (10-blade, 15-blade) b. Scissors (Metzenbaum, Mayo-Curved, Mayo-straight, Suture) c.
    [Show full text]
  • Nurse/Surgical Assistant Quickguide for Baha® FAST Surgery
    Nurse/Surgical Assistant Quickguide for Baha® FAST Surgery sound sense for a better life Products in this manual are protected by the following patents: US 5 735 790, US 5 935 170, EP 0715839, EP 0715838 and corresponding patents in other countries and pending patent applications. All products can be subject to change without notice. No part of this publication may be replaced, stored in a retrieval system, or transmitted, in any form by means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of the publisher. Caution: Federal law (USA) restricts this device to sale by or on the order of a medical practitioner. ©Entific Medical Systems AB, 2005. All rights reserved. Nurse/Surgical Assistant Quickguide 3 Contents C o n t e n t s • Instruments for set-up 4 • Procedure step by step 6 • Preparation for surgery 8 • Sterilization guidelines 9 • Implantmed sterilization guidelines 11 • Check list 13 Nurse/Surgical Assistant Quickguide 3 Instruments for set-up Instruments for set-up Surgical instruments Pick’n Place instrument set for Baha® The instrument set for Baha® includes instruments for fixture/abutment connection. A complete list of the instruments included is described in detail below. 1. 1. Surgical organizer, titanium 2. Dissector 2. 3. Forceps, titanium 4. Cylinder wrench 3. 5. Screwdriver Unigrip 95 mm 6. Counter torque wrench 4. 7. Drill indicator 8. Connection to handpiece 5. 9. Fixture mount Unigrip (should be placed into titanium organizer) 10. Indicator for Baha 6. 11. Machine screwdriver Unigrip 25 mm 12. Hexagon screwdriver 20 mm 7. 13. Raspatorium 14.
    [Show full text]
  • (Title of the Thesis)*
    DEVELOPMENT OF ELECTRONIC INSTRUMENTATION FOR COMPUTER-ASSISTED SURGERY by Kaci Carter A thesis submitted to the Department of Electrical and Computer Engineering In conformity with the requirements for the degree of Master of Applied Science Queen’s University Kingston, Ontario, Canada (August, 2015) Copyright ©Kaci Carter, 2015 Abstract In the operating room, feedback, such as instrument positioning guidance provided by surgical navigation systems is typically displayed on an external computer monitor. The surgeon’s attention is usually focused on the surgical tool and the surgical site, so the display is typically out of the direct line of sight. A simple visual feedback mechanism was developed to be mounted on the surgical tool. This feedback is within the surgeon’s direct line of sight and alerts the surgeon when it is necessary to look at the monitor for detailed navigation information. The combination of visual feedback with the surgical navigation system is designed to aid the surgeon in cutting around a tumor, maintaining negative margins, while reducing the amount of healthy tissue contained within the cut. The tool- mounted visual feedback device was designed to be light-weight, compatible with electromagnetic (EM) tracking, and pose no risk of galvanic connection to the patient. The device was tested through the resection of multiple tumor contour models using computer navigation screen only, and computer navigation screen with visual feedback mounted on the surgical tool. Use of the device was shown to decrease the amount of healthy tissue contained within the surgical cut, and to increase the subjects’ confidence in their ability to follow acceptable margins.
    [Show full text]